With Congress on the verge of outlining new parameters for National Security Agency eavesdropping between suspicious foreigners and Americans, lawmakers are leaving largely untouched a host of government programs that critics say involves far more domestic surveillance than the wiretaps they sought to remedy.

These programs – most of them highly classified – are run by an alphabet soup of federal intelligence and law enforcement agencies. They sift, store and analyze the communications, spending habits and travel patterns of U.S. citizens, searching for suspicious activity.

(Article continues below)

The surveillance includes data-mining programs that allow the NSA and the FBI to sift through large databanks of e-mails, phone calls and other communications, not for selective information, but in search of suspicious patterns.

Other information, like routine bank transactions, is kept in databases similarly monitored by the Central Intelligence Agency.